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Table 2 Weak scaling performance on Titan with \(\pmb{4.7\times10^{8}}\) particles per node

From: PKDGRAV3: beyond trillion particle cosmological simulations for the next era of galaxy surveys

Nodes \(\boldsymbol{N_{p}}\) Mpc Time (secs) Science Rate 1
2 1.0 × 109 250 124.9 4.00 × 106
17 8.0 × 109 500 117.4 4.02 × 106
136 6.4 × 1010 1,000 117.9 3.98 × 106
266 1.3 × 1011 1,250 125.1 3.76 × 106
2,125 1.0 × 1012 2,500 124.0 3.79 × 106
7,172 3.4 × 1012 3,750 123.2 3.82 × 106
11,390 5.4 × 1012 4,375 126.6 3.72 × 106
18,000 8.0 × 1012 5,000 120.1 3.70 × 106
  1. The science rate remains constant.
  2. 1In particles per second per node.